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Stockholders' Equity (Narrative) (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Equity, Class of Treasury Stock [Line Items]      
Preferred stock $ 92,000,000   $ 92,000,000
Common stock 59,885,000   59,885,000
Legal surplus 95,900,000   95,800,000
Stock Repurchase Program Remaining Authorized Repurchase Amount $ 5,500,000    
Stock repurchase program remaining number of shares authorized to be repurchased 492,885    
Stock Repurchase Program Authorized Amount $ 70,000,000    
Share price $ 11.18    
Shares repurchased during period, shares 175,000 0  
Common shares repurchased as part of the stock repurchase program (Value) $ 2,226,000 $ 0  
Share repurchased, average price per share $ 12.69    
Preferred Stock [Member]      
Equity, Class of Treasury Stock [Line Items]      
Preferred Stock Issue Costs $ 10,100,000   10,100,000
Common Stock [Member]      
Equity, Class of Treasury Stock [Line Items]      
Common Stock Issuance Cost $ 13,600,000   $ 13,600,000